MDaemon the domain to send and receive the letter

Recently found a letter of withdrawal is very interesting, to share with you. The specific letter of withdrawal is as follows:

Strange where, mainly senders and recipients under the same domain, according to MD normal processing, the domain of the MD test will be directly sent to the recipient's mail box, but here after the steps to resolve the domain name. That's weird!

Looking down carefully, found that the domain name and send and receive a person's domain name is still a trace of different, clearly received the domain name is power.cn end, but the resolution is poer.cn, obviously lost a W, this is why? Please continue to look down.

To view the sender of this original message, the original brother sent a group of emails, one of the recipient address of the domain was wrong, write less a W.

This article is from the mail server and network Management notes blog, please be sure to keep this source http://19281928.blog.51cto.com/2327194/652299

See more highlights of this column: http://www.bianceng.cnhttp://www.bianceng.cn/Servers/Mail/